Mobile Offshore Drilling Units
UR D1 Rev4 CLN
Requirement concerning offshore drilling units and other similar units - July 2004
UR D2 Rev2 CLN
Definitions - Rev.2 1996
UR D3 Rev6 CLN
UR D3 General design parameters - Rev.6 Nov 2018 Clean
UR D4 Rev3 CLN
UR D4 Self-elevating drilling units - Rev.3 Jan 2012
UR D5 Rev3 CLN
UR D5 Column stabilized drilling units - Rev.3 1996
UR D6 Rev1 CLN
UR D6 Surface type drilling units - Jan 2012
UR D7 Rev3 CLN
UR D7 Watertight integrity - Rev.3 Jan 2012
UR D8 Rev2 CLN
UR D8 Hazardous areas - Rev.2 1996 Clean
Note: UR D8 Rev.3 will come into force on 1 July 2022 and can be found in "Revision History"
UR D9 Rev3 CLN
UR D9 Machinery - Rev.3 1996 Clean
Note: UR D9 Rev.4 will come into force on 1 July 2022 and can be found in "Revision History"
UR D10 Del
Electrical installations - Deleted Dec 2018
UR D11 Rev3 CLN
UR D11 Safety features - Rev.3 Jan 2012 Clean
Note: UR D11 Rev.4 will come into force on 1 January 2023 and can be found in "Revision History"
UR D12 Deleted
UR D12 was re-categorized as UR Z15 in August 2002.